Spindle tip type spinning device



y 8, 1952 c. DELESALLE 3,032,961

SPINDLE TIP TYPE SPINNING DEVICE Filed Nov. 21, 1957 2 Sheets-Sheet 1 8I D i I: g 14 9 I g a i 10 I 4 Fig.1 6

lNVENTOR CLAUDE DE UESALLE ATTORNEY y 1962 c. DELESALLE 3,032,961

SPINDLE TIP TYPE SPINNING DEVICE Filed Nov. 21, 1957 2 Sheets-Sheet 2FIG.4 FIG. 40 FIG. 3 FIG. 30 FIG. 5 FIG. 5a

FIG. 6 FIG.6 1 FIG] FIG. 7a

FIG. Ila

INVENTOR. CLAUDE DELESALLE QQZ 64%? 60;

AT OR EYS.

United States Patent 1 3,032,961 SPINDLE TIP TYPE SPINNING DEVICE ClaudeDelesalle, Blvd. Vauban, Lille, France Filed Nov. 21, 1957, Ser. No.698,009 Claims priority, application France Nov. 21, 1956 8 Claims. (CI.5773) The present invention relates to an entrainment or feedarrangement of the thread on the spinning and twisting spindles whichenables a reduction in the number of breakages of the threads and toincrease the speed of the spindles,

Accordingly, it is an object of the present invention to provide anarrangement which produces a torsion in that part of the drawnout rovingwhich is located between the pair of delivery cylinders and the guidedisposed above the head of the spindle.

In practice it has been found in effect that it is at this particularplace that the majority of ruptures or breakages occur; for, by reasonof the imperfect distribution of the torsion, this part of the thread isless sturdy and cannot always resist to the tension forces of thetraveler.

In order to obviate this inconvenience, it has been suggested in theprior art to replace the guide, for instance, in the form of anauger-like gimlet, by a rotating turbine positively controlled by amechanical system, and to pass the thread into this turbine in order toimpart thereto a false torsion. However, the great speed of rotation ofthe turbines poses problems which are difficult to resolve insofar asthe construction of bearings as Well as the mechanical control thereofare concerned.

It has also been attempted to reduce the number of breakages byutilizing so-called pointed-spindle devices or reduced-ballooningspinning devices. In these prior art devices which enable to effectivelyremove the thread from the tension force of the traveler or at leastlessen such force, the thread is rolled over several coils about anextension or projection above the spindle, which is provided with anattachment device. As a result of such an arrangement, the part of thethread located in the critical zone is at least partly removed from thetensional stresses of the traveler, this force or stress being therebylocalized between the coils wound on the spindle and the traveler, thatis, on that part of the thread having already acquired its entireresistance. However, these prior art arrangements offer seriousinconveniences and disadvantages among which may be mentioned thefollowing:

(l) Even if well-polished annular members are used, different frictionalcoefiicients exist between the annular members and the travelers of thesame machine. It would, therefore, be necessary in order to obtainuniform operating conditions to carefully select for each particularcase the appropriate weight of the travelers in order to avoid that thebrakage is either too strong if the winding is too much accentuated or,on the contrary, too weak if the Winding is insufficient.

(2) The amplitude of the reduced balloon varies according to the degreeof brakage in such a manner that the balloon is either too small or toolarge. It is obvious that under these conditions it is difficult, and incertain cases even impossible, to determine the exact weight of thetraveler which assures an average tension.

(3) In practice, it is extremely difficult to obtain, by means of acentral control, the same number of windings along the entire length ofone continuous batch to be spun, given the fact that the variationsin'the friction in different spindles and the variations of adherence ofthe tubes or bobbins are amplified by the capstan effect.

The device and apparatus according to the present invention avoid allthe disadvantages and inconveniences of the prior art and enable therealization of a pre-torsion in the thread without the use of a specialmember having ice a positive control, and without necessitating thewinding of the thread in spiral form about the spindle.

The device in accordance with the present invention is characterized bythe fact that it comprises an entrainment or feed member fixed to theend of the spindle and at least one annular guide member assuringpermanent contact of the thread on this entrainment or feed member whichin turn then assures the pre-torsion of the thread.

Such an arrangement and device differs totally from anything known inthis field to date by reason of the fact that the arrangement and deviceaccording to the present invention do not necessitate a control systemnor bearings as in the case of rotating turbines nor winding of thethread about the spindle as in connection with the pointed spindles.

The guide member for the thread, preferably in the shape of an annularmember, is disposed below the entrainment or feed member and is fixed onthe thread guide. It is also understood that it is possible to provideother annular guide members below the first guide members in order tofurther reduce the size of the balloon or to permit the suppression ofseparators.

On the other hand, with a view to enable the control of the pressure ofthe thread against the entrainment or feed member, the position of theupper annular guide member for the thread and of the thread guide isadjustable.

The guide is provided with an auger-like gimlet or preferably with aplate, notched in the shape of a V and possibly provided with aretaining finger or nose member. The annular guide member is a ringwhich may be either continuous or non-continuous, disposed about thespindle and fixed directly on the thread guide or only on a rod disposednear the spindle.

The entrainment or feed member may be formed integrally with thespindle, or preferably may be removable and interchangeable, Theentrainment or feed member may also have any appropriate diameter,profile and height, may be shaped as a disk or may have the shape of acylinder or of a truncated cone. The entrainment or feed member may havea surface which is more or less adherent or rough or may be providedwith indentations or projections of any number according to any suitablearrangement, however, always enabling to the thread the necessarysliding movement. The indentations may be formed by slots of slightdepth which are disposed laterally and the angle of which must be socalculated that the thread may readily pass from one slot to another.

The entrainment or feed member may be made of any suitable material suchas metal, rubber, plastics or mineral material, etc.

The entrainment or feed member has preferably a diameter at the most aslarge as that of the spindle in order to permit the emplacement andremoval of tubes or bobbins which are mounted on the spindle.

Accordingly, it is an object of the present invention to provide ananti-balooning arrangement for spinning machines which is simple inconstruction and effective in operation.

It is still another object of the present invention to provide a guidesystem for the thread of a spinning and twisting device in which apredetermined torsion is imparted to the thread so as to reduce thebreakages and enable relatively high-speed operation.

Still another object of the present invention is to provide a means forimparting a torsion to the thread without any separate control devicewhich needs to be positively driven and without having to wind thethread spirally about the spindle.

These and other objects, features and advantages of the presentinvention will become more obvious from the following description whentaken in connection with the accompanying drawing, which shows, forpurposes of illustration only, one embodiment in accordance with thepresent invention, and wherein:

FIGURE 1 is a partial side elevational view of an antiballooningarrangement in accordance with the present invention,

FIGURE 2 is a partial top plan view of the arrangement of FIGURE 1,

FIGURES 3 and 3A are respectively a plan view and a side elevation of aform of thread guide differing from that shown in FIGURES l and 2.,

FIGURES 4 and 4A are like views of another form of thread guide,

FIGURES 5 and 5A are like views of still another form of thread guide,

FIGURES 6 and 6A are respectively a plan view and a side elevation of aform of annular guide member differing from that shown in FIGURES 1 and2,

FIGURES 7 and 7A are like views of a still further form of annular guidemember,

FIGURES 8 and 8A are respectively a plan view and a side elevation of arod mounting for a thread guide,

FIGURES 9 and 9A are respectively a side elevation and a plan view of aform of the entrainment member differing from that shown in FIGURES 1and 2,

FIGURES 10 and 10A are like views of a further form of the entrainmentmember, and

FIGURES 11 and 11A are like views of a still further form of theentrainment member.

Referring now to the drawing, wherein like reference numerals are usedto designate like parts, reference numeral 1 designates the deliverycylinders or metering rolls which deliver the thread 2. The thread 2passes first past the thread-guide member 3, to be more fully describedhereinafter, and mounted on a hinged member 4. After passing through thethread-guide member 3, the thread 2 proceeds tangentially along theknurled portion 5 of the head of the spindle 12 forming an entrainmentor feed point, thereafter passes along the inside of an annular guidemember 6 rigid with the member 4, thereupon, after having formed arelatively small balloon 7, passes within the annular member 8 andfinally into the traveler 9 which turns about the annular member 10fixed on the annular support member 11. The thread 2 is wound on thebobbin 13 mounted on the spindle 12 in any suitable manner and accordingto any known pattern and winding method.

The annular guide member 6 is rigidly connected with the thread-guidemember 3 or is formed integral therewith.

The annular member 8 is constantly maintained essentially in the centerof that portion of the thread 2 which is located between the annularguide member 6 and the annular member 10 by means of a support member 14which itself is actuated in any suitable manner to provide areciprocating motion as indicated by the arrows.

FIGURE 2, which is a plan view of FIGURE 1, shows the thread 2, thethread guide member 3 mounted on the hinge member 4 thereof and formedby a plate provided with a notch in the shape of a V, the knurled headportion 5, the annular member 6 and the ballooning control annularmember 8.

The height of the guide 3 above the spindle 12 varies according to thediameter and head of the spindle. As an illustration, for a spindle headportion 5 of 16 mm. in diameter, the height of the guide 3 must be aboutmm. with respect to the spindle head portion 5.

Since the drive means to provide the reciprocating movement indicated bythe arrows in connection with support member 14 as well as the rotarymovement of the spindle 12, head portion 5 and bobbin 13 as well as oftraveler 9 are well known in the art and may be of any conventionalappropriate construction, such drive means together with the other frameparts have been omitted for sake of clarity of the present invention.

As pointed out hereinabove, the feed or entrainment member formed by thespindle head portion 5, may be of any suitable construction enablingsliding movement of the thread 2 along the periphery thereof.

Furthermore, the upper thread-guide member ,6 may be of any suitableconstruction, for instance, may be constructed as open annular member 6ashown in FIG- URES 6, 6A, as closed annular member 6b as shown byFIGURES 7, 7A, or as a sleeve disposed on the side of the spindle 12,and may be adjustable in the height and/ or in the distance thereof withrespect to the axis of spindle 12 or as shown in FIGURES 8, 8A as anannular member 60 supported on a rod 14 which may be disposed at anappropriate distance from the spindle 12. Additionally, other guidemember or members, similar to guide member 6 may be provided therebelowin order to reduce even further the size of the balloon.

The thread-guide 3 may also be of any suitable construction, forexample, of a plate having a V-shaped notch or an auger-like gimlet 3awith small diameter. The notched plate 3 may also be provided with asmall retaining nose. These three different plate formations are shownrespectively as 3b in FIGURES 3, 3A, as 3a in FIGURES 4, 4A and as 30 inFIGURES 5, 5A.

The upper guide member may also be mounted on a hinged member so as toenable temporary removal from its normal position.

The feed or entrainment member 5 may be formed integrally with spindle12 or may be interchangeably secured thereto to enable variations in thediameter thereof, in the height thereof, in the profile thereof, in thema terial of which it is made, and in the degree of rough-' ness of itssurface. It may be knurled along the periphery thereof as shown bynumber 5a in FIGURES 9, 9A, provided with indentations or radial notchesof slight depth as shown by members 5b and 5c in FIGURES 10, 10A, 11,11A, and may be disk-shaped, cylindrical or in the form of a truncatedcone as illustrated respectively in the figures just mentioned. It mayalso be made of metal, rubber, plastics or mineral material.

While I have shown and described one embodiment in accordance with thepresent invention, it is understood that the same is not limited theretobut is susceptible of many changes and modifications within the spiritof the present invention, and I intend to cover all such changes andmodifications as encompassed by the appended claims.

I claim:

1. In a spinning machine provided with spindle means, traveler meansrotatably disposed about said spindle means, and means for driving saidtraveler means, an arrangement for imparting a torsion to the thread tobe spun prior to being wound on said spindle means comprisingentrainment means for said thread attached to the upper end portion ofsaid spindle means, guide means including a thread guide member arrangeda distance above said entrainment means for maintaining the path of saidthread in a fixed direction so as to intersect the axis of said spindlemeans, and an annular guide member rigidly connected to said threadguide member and substantially coaxial with and surrounding said spindlemeans, said annular guide member being located a distance below saidentrainment means, the distance of said guide member and said annularguide member from said entrainment means and the construction of saidmembers andsaid entrainment means being so dimensioned as to maintainsaid thread in continuous contact at all times with the periphery ofsaid entrainment means and at a constant angle with the axis of saidspindle means.

2. The combination according to claim 1, wherein said thread guidemember is formed by a plate provided with a V-shaped notch.

3. The combination according to claim 1, wherein said entrainment meansis knurled.

4. The combination according to claim 1, wherein said References Citedin the file of this patent entrainment means is in the shape of atruncated cone. UNITED STATES PATENTS 5. The combination according toclaim 1, wherein said entrainment means has a diameter at the most equalto 189890 Draper a fig that of said spindle means. 5 19 (X1710 Draper1910 6. The combination according to claim 1, wherein said 98 Boyd et aythread guide member is adjustable in height. FOREIGN PATENTS 7. Thecombination according to claim 1, wherein said 19 460 Great Britain of1890 guide means further includes a movable lower guide mem- 7043037Great Britain Feb 17 1954 ber disposed below said annular guide memberfor reduc- 10 1 2 Great Britain Sept 1955 ing the size of the balloon. BF b 29 1956 8. The combination according to claim 1, further com- 745582Great mam f n e I prising means pivotably supporting said thread guidemember to permit pivotal movement out of its normal position.

